Swimming with Sharks - TechKnow 

On this episode of TechKnow, contributor Phil Torres joins a team of scientists and conservationists at The University of Miami in the Bahamas. The team spends a week tagging and tracking around 20 tiger sharks to learn more about their habitat and mating cycles.
Tiger sharks are apex predators whose survival has a profound impact on other species in the sea. The warm waters where they track these sharks appear to be a good habitat for females to spend their 10- to 15-month gestational period. Using veterinary ultrasounds, they can determine-in real time-whether a shark is pregnant and, if so, how far along.
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